closed contract. Whose terms constitute the entire agreement between the contracting parties and no clause or provision can be changed or modified without mutual consent. An insurance contract, for example, is a closed contract whereas a construction contract may not be one. See also open contract.
The volt (symbol: V) is the derived unit for electric potential, electric potential difference (voltage), and electromotive force. The volt is named in honour of the Italian physicist Alessandro Volta (1745â1827), who invented the voltaic pile, possibly the first chemical battery.
Power is defined as the rate of producing or consuming energy. Say this ten times: âPower and energy are not the same thing! Power is energy per unit of time.â. The standard unit of electrical power is the watt, which is defined as a current of one ampere, pushed by a voltage of one volt. More simply, volts x amps = watts (there is a complication if weâre talking about alternating current, but weâll ignore it for now). In the USA, the standard wall socket delivers 120 volts.